| original |
Westphalian |
|
USSR(Ukrainian SSR) |
Lyuber,A.A. et al. Classification and stratigraphic value of spores of some Carboniferous Coal deposits in the USSR. |
1938 |
| details |
Middle Carboniferous |
Late Carboniferous |
USSR(Ukrainian SSR) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Visean |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spores and pollen of Lower Carboniferous deposits of the Western extension of the Donetz Basin and their values for stratigraphy. |
1956 |
| details |
Westphalian |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spores and pollen of Lower Carboniferous deposits of the Western extension of the Donetz Basin and their values for stratigraphy. |
1956 |
| details |
Kungurian |
Kazanian |
USSR(Kazakh SSR) |
Ditmar,V.I. et al. Permian Evaporites in Southwest Central Kazakhstan |
1964 |
| details |
Late Permian |
Early Triassic |
USSR(Yakut ASSR) |
Safyainikov,Y.V. Concerning the formation, size and age of the Lower Triassic Tuffogenic structure of South Western Yakuts. (In: Material on the Biostratigraphy and Paleogeography of Eastern Siberia) |
1975 |